<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>表格练习</title>
</head>
<body>
    <table border="1px">
        <caption>讲师信息表</caption>
        <tr>
            <th>序号</th>
            <th>讲师</th>
            <th>课程</th>
        </tr>
        <tr>
            <td style="text-align: center;">1</td>
            <td>传奇</td>
            <td>数据库</td>
        </tr>
        <tr>
            <td>2</td>
            <td>硕博</td>
            <td>SRE</td>
        </tr>
        <tr>
            <td>3</td>
            <td>强哥</td>
            <td>微服务</td>
        </tr>
    </table>

    <table border="1px">
        <tr>
            <td>1-1</td>
            <td>1-2</td>
            <td>1-3</td>
            <td>1-4</td>
        </tr>
        <tr>
            <!-- colspan="n"跨列，横着合并，从当前单元格开始向右合并n个单元格 -->
            <!-- rowspan="n"跨行，竖着合并，从当前单元格开始向下合并n个单元格 -->
            <!-- 被合并的单元格一定得删掉!!!  -->
            <td colspan="2">2-1</td>
<!--            <td>2-2</td>-->
            <td>2-3</td>
            <td rowspan="3">2-4</td>
        </tr>
        <tr>
            <td>3-1</td>
            <td>3-2</td>
            <td>3-3</td>
<!--            <td>3-4</td>-->
        </tr>
        <tr>
            <td>4-1</td>
            <td>4-2</td>
            <td>4-3</td>
<!--            <td>4-4</td>-->
        </tr>
    </table>
    <hr>
    <table border="1px" style="border-collapse: collapse;">
        <caption>购物车</caption>
        <tr>
            <th>商品编号</th>
            <th>商品名称</th>
            <th>商品价格</th>
        </tr>
        <tr>
            <td>1</td>
            <td>小米Air</td>
            <td>5877</td>
        </tr>
        <tr>
            <td>2</td>
            <td>华为遥遥遥遥遥遥领先</td>
            <td>5877</td>
        </tr>
        <tr>
            <td>总价:</td>
            <td colspan="2">10000</td>
        </tr>
    </table>
</body>
</html>